The secret of life is not enjoyment but education through experience.

Education is a system of imposed ignorance.

If I have seen further it is by standing on the shoulders of Giants.

Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.

Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.

A spirit of national masochism prevails, encouraged by an effete corps of impudent snobs who characterize themselves as intellectuals.

Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.

My alma mater was books, a good library.... I could spend the rest of my life reading, just satisfying my curiosity.

Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.

To read is to fly: it is to soar to a point of vantage which gives a view over wide terrains of history, human variety, ideas, shared experience and the fruits of many inquiries.

An investment in knowledge pays the best interest.

Educate the children and it won't be necessary to punish the men.

A man who has never gone to school may steal a freight car; but if he has a university education, he may steal the whole railroad.

Real knowledge is to know the extent of one's ignorance.

The man who is fond of books is usually a man of lofty thought, and elevated opinions.

The progressive development of man is vitally dependent on invention.

The delight of opening a new pursuit, or a new course of reading, imparts the vivacity and novelty of youth even to old age.

The fullness of knowledge only comes through the awareness of ignorance.

The whole of science is nothing more than a refinement of everyday thinking.

Knowledge becomes evil if the aim be not virtuous.

Knowing others is wisdom, knowing yourself is Enlightenment.